Added 10 October 2026 decoder /dɪˈkəʊdə(ɹ)/ noun Categories: PeopleThingsRare Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about decoder at Wordnik → Where our words come from → A person who decodes secret messages A device that decodes a scrambled electronic signal e.g. of a satellite television signal Related Words: decodedecryptiondecodingencodercoderreceiverboxdecryptingdecipherercodebreakerdecipheressdecrypter Back to today's word